Universal tool turret



Jan. 8, 1924. 1,480,165

.J. JENKINS UNIVERSALTOOL TURRET v Filed Sept. 30 1920 2 Sheets-Sheet 1 fi zfnesses fnvezziar:

J. L. JENKINS UNIVERSAL TOOL TURRET Jan. 8, 19 24, 1,480,155

Filed Sept. 50 1920 2 Sheets-She 2 Wz'inesses: [nae/z for:

Patented Jan. 8, 1924-,

UNHTED. .dTATES PATENT @FHQE. 7

JOHN L. JENKINS, OF PORT CHESTER, NEW YORK.

UNIVERSAL TOOL TURRET.

Application filed September 30, 1920. Serial No. 413,837.

To all whom it may concern:

Be it known that I, JOHN L. JENKINS, a citizen of the United States, residing in Port Chester, in the county of VVestchester and State of New York, have invented certain new and useful Improvements in Universal Tool Turrets, of which the following is a specification.

This invention relates to turrets or other tool holders for lathes and machine tools generally.

The device consists primarily in a twopart turret element, preferably made in upper and lower halves for convenience in machining the bores or seats for tool shanks. The device also consists in improved means for attaching said turret to the transverse slide of a lathe. Said last means comprises a separable base member having means thereon for engaging the T-headed slot or other cross-slide designed to make it universally engageable with any shape or form of slot such as is customarily met with upon the above noted slides. In ordinary shop practice diiferent slots have different dimensions, and the various tool posts usually carried thereby also have various dimensions and structure, and consequently the anchoring means for the individual tool post must correspond to the pecularities in design and the common practice of the manufacturers of the individual machines.

Ordinarily this particular problem of mounting turret adaptors of this type is met by providing an entirely different new cross head to be substituted for the customarv tool cross head and holder supplied by the makers; and this involves a large expense, inasmuch as the manufacturer of such turret must keep constantly in touch with all the many various forms, dimensions and types of slides on the different lathes ordinarily in use in machine shop practice. The new device herein described is quickly adjustable to any one of these various designs.

Another advantage in my new type of turret, in addition to the universal turret and lathe attaching means just noted, is the base member having two outstanding features of construction. One of these comprises an adjusting means whereby the turret may be raised and lowered, thereby adapting it for vertical adjustment in order to align the tool with the axis of the lathe live-spindle, the transverse horizontal adjustment of the turret devices being attained by operating the regular cross slide attachment adjustment as in the usual way now used with any lathe. It will therefore be seen that with the transverse and vertical adjustment the turret holder is easily and quickly adjusted to the axis of the livespindle, whereby truly concentric work may be performed.

The second outstandingimportant feature is the provision of means upon saidbase element in the form of a tapered or chamfered upper edge which in cooperation with a seat in the turret provides for LI1.8X tremely rigid mounting heretofore very diflimit to obtain in such constructions.

Some of the main advantages in the use of my new turret are the ease with which an ordinary lathe may be turned into a tur ret lathe, thereby permitting, during the manufacture of certain kinds of articles, preferably of metal, the performing of a large number of sequentialand varying turning, facing and boring operations upon such article while carried in the chuck on the live-spindle of the lathe. An obvious advantage afforded by the present form of construction is the elimination of a substi tuted slide for the slide already on the lathe, owing to its universal lathe attaching means and its two-way adjustability 0f turret centers, thus providing practically universal tool for any and all lathes within a given range of capacity which may be readily adapted and adjusted for such varying types of lathes where they are within the limit of proportions and capacities of the turret or vice-versa.

These and other objects and advantages will appear as the description proceeds; and while herein minute details of the invention are disclosed, the invention is not limited to these since many and various changes may be made without departing from the scope of the invention as claimed. I

In the accompanying drawings, showing by way of example one of manypossible embodiments of the invention,

Figure 1 is a plan of the new turret;

Fi 2 is side lev t o p r yv in ection; 7

view of the turret base;

views showing the turret in loweredand.

raised adjusted positions respectively.

My improved tool turret isfiadapted'ifor.

use with variously dimensioned transverse lathe slides, and particularly lathe-"slides having base members, such as 10, provided with slots,- such as the slot 11 of inverted T- shaped-cross-seetion forming undercut side flanges 12, shown in Fig. 2.

" Theturret is mounted on a peripherally threaded swivel post or base 15 (Fig. 1) for disposition over the base 10 of the slide and is rotatable h'orizoi'itallyf The swivel post orbase 15 isb-evel'ed at its 'up'perredge 16 to form a lowtruncated cone. 1 An interiorly threaded adjusting ring 18 is arranged for engaging the exteriorthread on said swivel post or base to raise the: swivel .post or base andth'e' turret to different'heights above the slide (Fig. 5), or permit the swivel post or base to'sea-t on said ring, by screwing move ment of the swivel post or base in said ring, the swivel'post or base being held in desired position relative to said ring by a set screw 19.

A clamp-plate 20 spaced from said base and disposedlongitudinally of said T-slot under'both' of said side flangesmay be adjusted as to height by clamping screws 21 passing through base 15and into said clampplate for. clamping said base on the slide, Whatever height the base is held by the ring 18.. A positionedtongue element 24 (Fig.

3) is disposed longitudinally of said i slot between said'fianges 12 against one of the flanges and is adapted to be fixed by screws 25 in several positions of adjustment on the under face of said base, as shown by the dotted lines. An adjustable tongue element 26 is disposed in said T-slot between said flanges against the other flange 12 and is adjustably spaced from fixed element and provided with transverse slots 27 in which engage. clamping screws 28 passing through said transverse slots into the swivel base for clamping the adjustable'element in adjusted position. By adjusting these tongue-elements a good working fit may be obtained whatever may be the distances between the flanges 12.

A stud 30 (Fig. 41) received in a central bore 31 in the base 15 and provided with a threaded upper end receives a turret formed of a top head 33-and a bottom head 84- secured' together with suitable screws 35 (Fig. 1) to form contacting iac'es or a plane of parting 36. This head is provided'with a central bore 37 received on said stud and with radial square tool seats 38 (Fig. just below said plane and with radial round tool seats 39 intersecting but principally below said plane.

' The lower face of said bottom head is provided with a shallow tapering recess ll) (Fig. 4-) having inclined side walls 41 snugly received on said-bevelled edges 16 of the base; and a locking handle 12 (Fig. 2) having'a tapped bore 13 (Fig. 1) received on said stud 80 is adapted for locking said turret head onthe basewith a wedging action at said edge 16 and wall 41.

A lock-pin 14 (Fig. 2) in each lock pin bore 45 has avclamping nut 46 at the upper end and is provided with a cut away portion 1-? approximatelycoincident with the wall of theround tool seat 39. Set screws d8 are provided for holding squaretools in the square tool seats.

An index pin 50 in the vertical index'bore 51 is provided with an upper-endinianipw lating head 52 and at its lower end'with an enlarged locking head 58 adapted to engage in any one of eight or more'equally spaced index openings 5 1 in the base 15. A spring on "the index pin compressedbetween said enlarged head 53 and a shoulder 56 at'the upper end of the bore'yieldably holds the index pin in place. The top .and'b'ottom-heads of the turret are each turned up separately, and the square tool seats are then out in the bottom head. Provision is lthenrnade 'for'the screws and the remaining seats andboxes are drilled after theheads are: secured together. I

The operation'ofthe device will be readily apparent from the foregoing. The turret portion is removed by releasing thehandle 42 and by means of the screws 25 and 28 (Fi' 3),'the tongue elements 2 1 and 26 are ad justed to fitbetween the flanges 12 (Fig. 2) of the slide. The clamp plate 20 is then placed under the flanges 12 and held by means of the screws 21. The turret portion is then replaced and turnedv on the base 15 until the desired position of rotation. is reached and the index pin allowed to engage in the desired opening 5a. a The required tool being locked in its seat the turret and swivel post are 'then rotated in the ring 18 until the tool assumes the correct height relative to the axis of rotation of the work, the swivel post being locked in this position by the set'scre'w 19. i The turret is then clamped firmly in-position by means of the handle 42.

After each operation, the handle. 12 is loosened and the turret turned to bring the succeeding tool in place.

Other modes at operation will readily suggest themselves.

Having thus described my invention 1 claim:

1. In a universaltool turret, the combination. with a lathe slide, of a circular. base th'eaded on its periphery; a turret rotatable ill) Inn

horizontally on said base provided with tool carriers; an interiorly threaded ring engaging said base for raising or lowering the base and turret for alinement of said toolcarriers with the axis of the lathe live spindle; and means for removably attaching said base to the slide.

2. In a universal tool turret, the combination, with a lathe slide, of a circular b-ase threaded on its periphery; a turret rotatable horizontally on saidbase provided with tool carriers; an interiorly threaded ring engaging said base for raising or lowering the base and turret for alinement of said toolcarriers with the axis of the lathe live spindle; means for retaining the turret and base in raised or lowered position; and means for removably attaching said base to the slide.

3. In a universal tool turret, the combination, with a lathe slide, of a circular base threaded on its periphery and having a truncated cone-shaped upper portion; a turret rotatable horizontally on said base provided with tool carriers and having a recessed lower portion for conformably engaging said truncated cone-shaped upper portion; means for rotatably supporting the turret on said base, the turret being separable from the base; an interiorly threaded ring engaging said base for raising or lowering the base and turret for alinement of said tool-carriers with the axis of the lathe live spindle; and means for removably attaching said base to the slide.

4. In a universal tool turret, the combination, with a lathe slide, of a circular base threaded on its periphery and havinga truncated cone-shaped upper portion; a turret rotatable horizontally on said base provided with tool-carriers and having a recessed lower portion for conformably engaging said truncated cone-shaped upper portion; means for rotatably supporting the turret on said base, the turret being separable from the base; means for releasably locking said base and turret in conforming engagement of said lower and upper portions; an interiorly threaded ring engaging said base for raising or lowering the base and turret for alinement of said tool-carriers with the axis of the lathe live spindle; means for reengageable with the side walls of the stem of the'slide slot; one of said co-operating members being fixedly positionable on the base, and the other of said members being adjustably movable on the base for regulating the space between said members for engagement of the members with the side Walls of the slide slot.

6. In a universal turret tool having a supporting base, the combination, with a lathe slide provided with-an attachment slotcomprised of a stem portion having side walls and a portion transverse to the stem portion, of the supporting base of the turret tool; and means for attaching said base to the slide slot; said means comprising clamping members operatively connected to said base and engageable with the transverse portion of the slide slot, and cooperating members operatively connected to said'base and engageable with the side Walls of the'stem ofthe slide slot; said co-operating members being movable for spacing them apart to meet the width of the space between said side walls for engagement of said memberswith said side walls.

7. In a universal turret tool having a supporting base, the combination, with a lathe slide provided'with an attachment slot comprised of a stem portion having sidewalls and a portion transverse to the stem portion,-

of the supporting base of the turret tool;

and means for attaching the base to the slide slot; said means comprising clamping members carried by said base engageable with the transverse portion of the slide slot, and cooperating members carried by the base engageable with the side walls of the stem of the slide slot; one of said co-operating mem-' bers being fixedly positionable on the base, and the other of said members being movable on the base and adjustable by slot and pin means for regulating the space between said members for spacing them apart for engagement with the side walls of the stem of the slide slot.

8. In a universal turret tool having a supporting base, the combination, with a lathe slide provided with an attachment slot comprised of a stem portion and a portion transverse to the stem portion, of the supporting base of the turret tool; a turret on said base provided with tool carriers; and means for clamping said base to the slide slot; said means comprising lamping members operatively connected to said base engageable with the transverse portion of the slide slot, and co-operating members operatively connected to said base engageable with the side walls of the stem of theslide slot; and said turret being separable from said base for permitting adjustment of said clamping means to the slide slot.

9. In a universal turret tool having a supporting base, the combination, with a i 1,eso,1e5

lathe slide, provided with an attachment slot comprised-- of a' stem; portion and a; portion transverse to the stemfportion, of the supporting base of the turret -tool;-'a turret on said base provided withtool carriers; and means for clamping said base to the slide slot said means comprising clamping members operatively connected to-saidbase and engageable with the transverse portion of the slide slot, and co-operatin'g members operat-ively connected to said base *engageable with the side walls of the stem of the slide slot; said co-operating members being movable for spacing themapart-to meet the width of the space between said side walls for engagement of said members with said sidewalls; and said turret being separable from said base for permitting adjustment of said clamping means to theslide slot.

10.111 a universal turret tool having a supporting base, the combination, with a lathe slide provided with an attachment slot of inverted T shape, of the supporting base of the turret tool; a turret on said base provided with tool carriers; and means for clamping said base to the slide slot; said means comprising clamping members carried by said base engageable with the transverse portio-nof the slide slot, and co-operating members carried by said base engage able with the side walls of the stenrof the slide slot; one of said members b'eing fixedly positionableon the base, and the other of said members being movable on the base and adjustable by slot and pin means for 're ulating the space between said members for spacing them apart for engagement with the side wahs of the stern of the slide slot.

11. In combination, a slide having a slot forming side flanges; a base; a tongueon the base between the flanges and laterally adjustably in width; a clamping platea djustably secured to said base to clamp under the flanges and adjustable relatively to said tongue; and a tool holder on said base.

12. In combination, a slide having a slot forming side flanges; a base; a clamping plate secured to saidbase to clamp under the flanges; tongue'on the base between the flanges and adjustable in width independently ofsaid plate; and a tool holder-on said base. I

In combination, a slide having a slot forming side flanges; a base; a one piece clamping plate secured to said base to clamp under saidflanges;=a tongue adjustable in width secured to the lower face of the base between said-flanges;-and a tool holder on said base'. V

p a JOHN L. JENKINS.

iVitnesses I H. M. KILrA'rRIOK,

H; D. PENNEY. 

